The Impacts of Removing Fossil Fuel Subsidies and Increasing Carbon Taxation in Ireland

Though the magnitude of fossil fuel subsidies eclipses carbon pricing revenues, policies and economic literature focus on carbon taxation. This paper aims to show that removing fossil fuel subsidies can reduce emissions as much as carbon taxation without making producers and consumers worse off. Using a dynamic intertemporal CGE model of Ireland, we compare removing eight Irish fossil fuel subsidies and increasing the carbon tax to euro100 per tonne by 2030. We find that both policies result in similar emission reductions. Carbon taxation results in lower negative GDP and investment impacts, whereas subsidy removal results in lower negative employment impacts, higher revenues, an improved trade balance and lower debt. The impacts across sectors and households are distributed more evenly under a carbon tax, where subsidy removal results in extreme impacts for specific sectors and households. Excluding households' subsidies from removal can alleviate these household distributional impacts at no cost to emission reduction. With revenue recycling reducing tax rates, a double-dividend is found at the expense of worsened income distribution. The economic benefit of revenue recycling is greater when removing subsidies than with carbon taxation and results confirm the importance of fossil fuel subsidies in climate policy.

Automated summary

This paper aims to demonstrate that removing fossil fuel subsidies can achieve significant emission reductions without negatively impacting producers and consumers, similar to the effects of carbon taxation. By using a dynamic intertemporal CGE model of Ireland, the study compares the outcomes of removing eight Irish fossil fuel subsidies and increasing the carbon tax to euro100 per tonne by 2030. The results show that both policies lead to similar emission reductions, but carbon taxation has lower negative impacts on GDP and investment, while subsidy removal has lower negative impacts on employment, higher revenues, improved trade balance, and lower debt. The study also highlights the importance of excluding households' subsidies from removal to alleviate distributional impacts without compromising emission reduction.